(.005" wire, max. RPM 4000) preferred for rust or hot water bluing to give soft, wiping action at 500 to 600 rpm. NOTE: DO NOT use the same wire wheel for two different metals. The little bits of one metal left in the wheel can transfer to the next metal causing spots and discoloration in bluing and plating baths, or leaving rustable mild steel bits in brushed stainless. ARBOR SPECS: 1/2" (12.7mm), 3/4" (19mm) Mfg: Osborn Manufacturing SPECS: 6" (15.2cm) diameter, 1/2" (12.7mm) face.
